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WLD Y3 - Geography > Mountains, volcanoes and earthquakes > Flashcards

Mountains, volcanoes and earthquakes Flashcards

1
Q

What is a fault line?

A

A tectonic plate boundary

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2
Q

What is a mountain range?

A

A group of mountains formed along plate boundaries

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3
Q

What is a fold mountain?

A

A mountain formed by tectonic plates crumpling and folding

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4
Q

What is an active volcano?

A

A volcano that has erupted in the last 10,000 years

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5
Q

What is a dormant volcano?

A

A volcano that hasn’t erupted in a long time but may erupt again

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6
Q

What is an extinct volcano?

A

A volcano that hasn’t erupted in the last 10,000 years

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7
Q

A shield volcano is…

A

Formed at a constructive plate boundary

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8
Q

A composite volcano is…

A

Formed at a destructive plate boundary

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9
Q

Where is the Ring of Fire?

A

The Pacific Ocean

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10
Q

What is a mantle plume?

A

An area under the Earth’s crust which is abnormally hot

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11
Q

What is a hot spot?

A

An area above the mantle plume where the crust melts causing volcanic activity

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12
Q

A subduction zone is when…

A

A heavier oceanic plate is forced beneath a continental plate

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13
Q

Geothermal means…

A

Energy from the heat of the Earth

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14
Q

What is magma?

A

Molten (liquid) rock in the Earth’s mantle

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15
Q

What is lava?

A

Magma that has reached the Earth’s surface

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16
Q

What is a fissure?

A

A crack in the land formed by tectonic activity

17
Q

A tsunami is…

A

An earthquake beneath the ocean, causing huge waves

18
Q

What are the Earth’s main layers?

A

Inner core, outer core, mantle, crust

19
Q

What is the Ring of Fire?

A

A plate boundary where lots of volcanic activity occurs

20
Q

Tectonic plates are…

A

Pieces of the Earth that constantly move. They can move away, slide against or collide

21
Q

How does an earthquake occur?

A

Tectonic plates conintually move in different directions over time, friction causes energy to build up, it is released and creates a shock wave

22
Q

Name some dangers of living near a volcano

A

Earthquake, landslide, tsunami, pyroclastic flow, lava flow, ash fall

23
Q

Name some benefits of living near an earthquake

A

nutrient-rich soil, tourism, geothermal energy, mining minerals

24
Q

What is the full name of a GIS system?

A

Geographic information system

25
Q

What does a GIS system do?

A

A source of evidence used to interpret geographic data

26
Q

The moment magnitude scale is used to…

A

Measure the strength of earthquakes

WLD Y3 - Geography (3 decks)

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